Fire - I had a woman start a fire in her apartment. She had a space heater, electric blanket, and heating pad all in her bed. Her whole apartment went up in flames. Thankfully fire dept responded right away and saved the rest of the bldg. No one got hurt, except the insurance company's pockets.
Domestic dispute - Couple were fighting due to financial problems, they were behind in rent. Girl ends up throwing a pot of boiling water on the boyfriends back. A neighbor alerts me, I walk in and see him standing there naked, covered in burns and blisters. She is sitting calmly on the couch. I take him into my office, call 911 and they take him to the hospital and arrest her. I found hundreds of needles, heroine, dozens of medical marijuana containers, and the prize find - her prostitute log. Gotta love it.
Those are some of the best that I can think of now.
